You know its a witch hunt when “Special Counsel Robert S. Mueller” hires only Democrat lawyers who worked for Clinton and investigates a crime of the President is technically incapable of commuting.
Obstruction of Justice crime is impossible for President of the United States because under the law the President can end any FBI investigation he wants for whatever reason he wants. Not that Trump made any effort to do so.
Yet supposedly impartial Robert Muller wants to spend large numbers of Tax payer dollar, hireling highly pardon democrats to investigate a crime that is technically impossible.
FWIW, "investigating" and "prosecuting" (or "indicting" - a fair synonym for the first step in a criminal prosecution) are two distinct steps in a process. It is quite common for an investigation to conclude, and that's the end of the process for that case.
What Mueller can't do -- at least it's generally agreed he can't even though pinhead academics will debate this -- is indict the president for a federal crime. The systematic pressure relief for what looks like total immunity for the president is that the results of the investigation can be provided to Congress, which has the power to impeach, and following impeachment and removal the president can be tried.
Just to follow up on that, imagine a hypothetical where the president is literally a crook. For example, violations of federal wiretapping or surveillance laws; or to pick a highly unlikely one, kidnapping for ransom. Total immunity for anybody is anathema to the "nation of laws" charade that our masters use to keep us in line.
But get away from the "clear crimes" realm, and the picture changes. Mueller is working under a DoJ regulation that allows him to investigate (must adhere to DoJ regulations, for example investigations are secret and confidential; the DoJ "investigation regulations" run thousands of pages); and also allow him the role of prosecutor. He can indict (accuse a person for a specified criminal act) and try the accused criminal in a court of law.
Here it gets interesting, but I think just on a technicality. I'll express what I see as the practical outcome later.
If Mueller does not indict, he reports the results of his investigation to Rosenstein, and that is the end of it. No public report on Mueller's say-so. See 28 CFR 600.8 - Notification and reports by the Special Counsel.
(c) Closing documentation. At the conclusion of the Special Counsel's work, he or she shall provide the Attorney General with a confidential report explaining the prosecution or declination decisions reached by the Special Counsel.
I assume the reader knows that AG Sessions has recused, so where "Attorney General" appears in 28 CFR 600, substitute "Deputy Attorney General Rosenstein," the person who appointed Mueller.
Rosenstein, in turn, will refer to 28 CFR 600.9 - Notification and reports by the Attorney General. Rosenstein is the person responsible for the judgment call on who, if anybody, sees the results of the investigation. Traditionally these reports are made public.
Brief aside, Limbaugh and most people assert that a SC has never given a clean bill of health, they always find a crime. That is not true, See Danforth's investigation of the FBI in the Waco incident.
Finally, the practical point. This entire Chinese Firedrill is a coup attempt started by Hillary, Comey and company, using wildly inflated accusation via innuendo. It has the support of all of the DEMs in Congress, just under half of the public, the entire MSM, and to the extent they influence the US, foreign powers who work to persuade and agitate the public and the Congress in an anti-Trump direction. Carlos Slim's NYT for example, includes foreign influence on the US political process, and George Soros funds street gangs like Antifa.
This coup attempt has to be wound down or dismantled carefully, and the public has to be kept in the loop or else things get dicey. Even though he lacked the legal predicate to appoint a SC, Rosenstein (and Trump) did so. I view this as a form of "expediting the conclusion" of the bogus investigations Comey started in the first place. Left to Comey, those investigations would be open for years - enabling the ginned-up reports in the press, and round and round it goes.